1260630543 has 4 divisors (see below), whose sum is σ = 1680840728. Its totient is φ = 840420360.

The previous prime is 1260630533. The next prime is 1260630557. The reversal of 1260630543 is 3450360621.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1260630543 - 2¹⁰ = 1260629519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1260630543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260630523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210105088 + ... + 210105093.

It is an arithmetic number, because the mean of its divisors is an integer number (420210182).

Almost surely, 2^1260630543 is an apocalyptic number.

1260630543 is a deficient number, since it is larger than the sum of its proper divisors (420210185).

1260630543 is an equidigital number, since it uses as much as digits as its factorization.

1260630543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420210184.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 1260630543 is about 35505.3593560184. The cubic root of 1260630543 is about 1080.2624370807.

The spelling of 1260630543 in words is "one billion, two hundred sixty million, six hundred thirty thousand, five hundred forty-three".